Occlusion catheter system for partial occlusion or full occlusion

Abstract

An occlusion catheter system for full or partial occlusion of a vessel having a vessel diameter includes a proximal catheter shaft having a proximal lumen and a hypotube positioned partially within the proximal lumen and spaced from the proximal catheter shaft. The catheter system also includes a distal catheter shaft attached to a distal end of the hypotube and an occlusion balloon connected at a proximal end to the proximal catheter shaft and at a distal end to the distal catheter shaft. The occlusion balloon is configured to define flow channels with inner surfaces of the vessel at folds in the occlusion balloon when the occlusion balloon is partially inflated and in engagement with the inner surfaces.

We claim: 
     
         1 . An occlusion catheter for full or partial occlusion of an aorta having an inner diameter, the occlusion catheter system comprising:
 a proximal catheter section; and   an occlusion balloon having a proximal end and a distal end, the occlusion balloon connected at the proximal end to the proximal catheter section, and the occlusion balloon being constructed of a semi-compliant or non-compliant material and sized to have a blown diameter between approximately ten percent to sixty percent greater than the inner diameter of the aorta, whereby an outer surface of the occlusion balloon comes into diametric contact with an inner surface of the aorta upon partial inflation of the occlusion balloon and folds are formed in the outer surface of the occlusion balloon, the folds defining flow channels with inner surfaces of the aorta or with portions of the outer surface of the occlusion balloon that allow partial blood flow past the occlusion balloon.   
     
     
         2 . The occlusion catheter system of  claim 1 , wherein the occlusion balloon has a blown diameter of approximately twenty-five to thirty-five millimeters (25-35 mm). 
     
     
         3 . The occlusion catheter system of  claim 1 , wherein the blown diameter is approximately thirty millimeters (30 mm). 
     
     
         4 . The occlusion catheter system of  claim 1 , wherein the proximal catheter section includes a proximal lumen and wherein the occlusion catheter system further comprises a central shaft positioned partially within the proximal lumen and spaced from the proximal catheter section. 
     
     
         5 . The occlusion catheter system of  claim 4 , further comprising:
 an inflation hub connected to a proximal end of the proximal catheter section and to a proximal end of the central shaft.   
     
     
         6 . The occlusion catheter system of  claim 5 , further comprising:
 a pressure relief valve attached to the inflation hub, the pressure relief valve in fluid communication with an inflation cavity of the occlusion balloon.   
     
     
         7 . The occlusion catheter system of  claim 5 , wherein the inflation hub includes a balloon extension line and an arterial line extension line, the balloon extension line being in fluid communication with the proximal lumen, and the proximal lumen being in fluid communication with an inflation cavity of the occlusion balloon. 
     
     
         8 . The occlusion catheter system of  claim 7 , wherein the balloon extension line includes an inflation valve and a pressure relief valve, the inflation valve being positioned closer to the occlusion balloon than the pressure relief valve. 
     
     
         9 . The occlusion catheter system of  claim 7 , wherein the central shaft is comprised of a hypotube, the hypotube including a hypotube lumen, the hypotube lumen in fluid communication with the arterial line extension line. 
     
     
         10 . The occlusion catheter system of  claim 1 , wherein the occlusion balloon is configured to fully occlude the aorta in an inflated configuration. 
     
     
         11 . The occlusion catheter system of  claim 1 , wherein the proximal catheter section includes depth markings. 
     
     
         12 . The occlusion catheter system of  claim 11 , wherein the depth markings include a zone I range and a zone III range. 
     
     
         13 . The occlusion catheter system of  claim 1 , further comprising a sensor attached to the occlusion catheter system. 
     
     
         14 . The occlusion catheter system of  claim 13 , further comprising a display hub mounted to the proximal catheter section and electrically connected with the sensor, the display hub being configured to display a reading from the sensor. 
     
     
         15 . The occlusion catheter system of  claim 1 , wherein the occlusion balloon has a substantially consistent thickness. 
     
     
         16 . The occlusion catheter system of  claim 1 , wherein the occlusion balloon has a length of between approximately thirty millimeters (30 mm) and approximately one hundred millimeters (100 mm). 
     
     
         17 . The occlusion catheter system of  claim 1 , wherein, further inflation from the partial inflation is configured to press respective fold walls upon one another, to, in turn, collapse the flow channels and prevent blood flow past the occlusion balloon. 
     
     
         18 . The occlusion catheter system of  claim 1 , further comprising a distal catheter section, the occlusion balloon being connected at the distal end thereof to the distal catheter section. 
     
     
         19 . The occlusion catheter system of  claim 1 , wherein the proximal catheter section and the occlusion balloon have an outer diameter of 7 French or less in a folded configuration of the occlusion balloon.